Small target detection method based on joint edge filtering morphology

A small target detection and edge filtering technology, applied in the field of image processing, can solve the problems of difficulty in small target recognition and low accuracy, and achieve the effect of high accuracy, simple implementation and fast calculation speed.

Active Publication Date: 2020-01-07
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a small target detection method ba...

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  • Small target detection method based on joint edge filtering morphology
  • Small target detection method based on joint edge filtering morphology
  • Small target detection method based on joint edge filtering morphology

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and cannot limit the protection scope of the present invention with this;

[0053] like figure 1 As shown, it is a flow chart of a small target detection method based on joint edge filtering morphology provided by a specific embodiment of the present invention, and the method includes the following steps:

[0054] In step 1, a joint edge filter function is used to perform operations on local pixels of the original image to generate a matrix of structural elements of the original image. Specifically include:

[0055](1) Select an operation area with the same size as the morphological structure element to traverse the original image. The size of the operation area is related to the size of the target, usually slightly larger than the target; in this embodimen...

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Abstract

The invention discloses a small target detection method based on joint edge filtering morphology in the technical field of image processing, and aims to solve the technical problems of high small target identification difficulty and low accuracy in the prior art. The method comprises the following steps: operating local pixels of an original image by using a joint edge filtering function to generate a structural element matrix of the original image; performing joint edge filtering morphological corrosion on the original image by using the structural element matrix of the original image to obtain a corroded image as a background image; performing top-hat transformation based on the original image and the background image to obtain a result image; and performing target recognition on the result image by using the adaptive threshold.

Description

technical field [0001] The invention relates to a small target detection method based on joint edge filter morphology and belongs to the technical field of image processing. Background technique [0002] In recent years, infrared thermal imaging technology has been more and more widely used in various fields, among which infrared small target detection technology has played a key role in infrared search and tracking, infrared warning and precision guidance systems. Taking airborne aviation weapons as an example, in order to find air and ground targets as early as possible and gain enough reaction time, it is necessary to extend the recognition distance of targets, and long-distance targets often appear in the form of small targets in the field of view. The contrast of the target is generally very low, which makes it difficult to detect and track reliably and stably; at the same time, due to the heat exchange between the target and the surrounding environment, the air has the...

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Application Information

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IPC IPC(8): G06T5/00G06T5/30G06T7/13G06T7/155G06T7/40G06K9/46
CPCG06T5/30G06T7/155G06T7/13G06T5/002G06T7/40G06T2207/10048G06V10/44G06V2201/07
Inventor 朱虎张杰克邓丽珍
Owner NANJING UNIV OF POSTS & TELECOMM
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